2 bool "Pulse-Width Modulation (PWM) Support"
4 Generic Pulse-Width Modulation (PWM) support.
6 In Pulse-Width Modulation, a variation of the width of pulses
7 in a rectangular pulse signal is used as a means to alter the
8 average power of the signal. Applications include efficient
9 power delivery and voltage regulation. In computer systems,
10 PWMs are commonly used to control fans or the brightness of
13 This framework provides a generic interface to PWM devices
14 within the Linux kernel. On the driver side it provides an API
15 to register and unregister a PWM chip, an abstraction of a PWM
16 controller, that supports one or more PWM devices. Client
17 drivers can request PWM devices and use the generic framework
18 to configure as well as enable and disable them.
20 This generic framework replaces the legacy PWM framework which
21 allows only a single driver implementing the required API. Not
22 all legacy implementations have been ported to the framework
23 yet. The framework provides an API that is backward compatible
24 with the legacy framework so that existing client drivers
25 continue to work as expected.
36 tristate "AB8500 PWM support"
37 depends on AB8500_CORE && ARCH_U8500
39 Generic PWM framework driver for Analog Baseband AB8500.
41 To compile this driver as a module, choose M here: the module
42 will be called pwm-ab8500.
45 tristate "Atmel PWM support"
46 depends on ARCH_AT91 || AVR32
48 Generic PWM framework driver for Atmel SoC.
50 To compile this driver as a module, choose M here: the module
51 will be called pwm-atmel.
53 config PWM_ATMEL_HLCDC_PWM
54 tristate "Atmel HLCDC PWM support"
55 depends on MFD_ATMEL_HLCDC
58 Generic PWM framework driver for the PWM output of the HLCDC
59 (Atmel High-end LCD Controller). This PWM output is mainly used
60 to control the LCD backlight.
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-hlcdc.
66 tristate "Atmel TC Block PWM support"
67 depends on ATMEL_TCLIB && OF
69 Generic PWM framework driver for Atmel Timer Counter Block.
71 A Timer Counter Block provides 6 PWM devices grouped by 2.
72 Devices in a given group must have the same period.
74 To compile this driver as a module, choose M here: the module
75 will be called pwm-atmel-tcb.
78 tristate "iProc PWM support"
79 depends on ARCH_BCM_IPROC || COMPILE_TEST
81 default ARCH_BCM_IPROC
83 Generic PWM framework driver for Broadcom iProc PWM block. This
84 block is used in Broadcom iProc SoC's.
86 To compile this driver as a module, choose M here: the module
87 will be called pwm-bcm-iproc.
90 tristate "Kona PWM support"
91 depends on ARCH_BCM_MOBILE
93 Generic PWM framework driver for Broadcom Kona PWM block.
95 To compile this driver as a module, choose M here: the module
96 will be called pwm-bcm-kona.
99 tristate "BCM2835 PWM support"
100 depends on ARCH_BCM2835
102 PWM framework driver for BCM2835 controller (Raspberry Pi)
104 To compile this driver as a module, choose M here: the module
105 will be called pwm-bcm2835.
108 tristate "Marvell Berlin PWM support"
109 depends on ARCH_BERLIN
111 PWM framework driver for Marvell Berlin SoCs.
113 To compile this driver as a module, choose M here: the module
114 will be called pwm-berlin.
117 tristate "Blackfin PWM support"
118 depends on BFIN_GPTIMERS
120 Generic PWM framework driver for Blackfin.
122 To compile this driver as a module, choose M here: the module
123 will be called pwm-bfin.
126 tristate "Broadcom STB PWM support"
127 depends on ARCH_BRCMSTB || BMIPS_GENERIC
129 Generic PWM framework driver for the Broadcom Set-top-Box
132 To compile this driver as a module, choose M Here: the module
133 will be called pwm-brcmstb.c.
136 tristate "CLPS711X PWM support"
137 depends on ARCH_CLPS711X || COMPILE_TEST
140 Generic PWM framework driver for Cirrus Logic CLPS711X.
142 To compile this driver as a module, choose M here: the module
143 will be called pwm-clps711x.
146 bool "Intel Crystalcove (CRC) PWM support"
147 depends on X86 && INTEL_SOC_PMIC
149 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
153 tristate "ChromeOS EC PWM driver"
154 depends on MFD_CROS_EC
156 PWM driver for exposing a PWM attached to the ChromeOS Embedded
160 tristate "Cirrus Logic EP93xx PWM support"
161 depends on ARCH_EP93XX
163 Generic PWM framework driver for Cirrus Logic EP93xx.
165 To compile this driver as a module, choose M here: the module
166 will be called pwm-ep93xx.
169 tristate "Freescale FlexTimer Module (FTM) PWM support"
174 Generic FTM PWM framework driver for Freescale VF610 and
175 Layerscape LS-1 SoCs.
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-fsl-ftm.
181 tristate "HiSilicon BVT PWM support"
182 depends on ARCH_HISI || COMPILE_TEST
184 Generic PWM framework driver for HiSilicon BVT SoCs.
186 To compile this driver as a module, choose M here: the module
187 will be called pwm-hibvt.
190 tristate "Imagination Technologies PWM driver"
192 depends on MFD_SYSCON
193 depends on COMMON_CLK
194 depends on MIPS || COMPILE_TEST
196 Generic PWM framework driver for Imagination Technologies
197 PWM block which supports 4 channels.
199 To compile this driver as a module, choose M here: the module
200 will be called pwm-img
203 tristate "i.MX PWM support"
206 Generic PWM framework driver for i.MX.
208 To compile this driver as a module, choose M here: the module
209 will be called pwm-imx.
212 tristate "Ingenic JZ4740 PWM support"
213 depends on MACH_JZ4740
215 Generic PWM framework driver for Ingenic JZ4740 based
218 To compile this driver as a module, choose M here: the module
219 will be called pwm-jz4740.
222 tristate "TI/National Semiconductor LP3943 PWM support"
223 depends on MFD_LP3943
225 Generic PWM framework driver for LP3943 which supports two PWM
228 To compile this driver as a module, choose M here: the module
229 will be called pwm-lp3943.
231 config PWM_LPC18XX_SCT
232 tristate "LPC18xx/43xx PWM/SCT support"
233 depends on ARCH_LPC18XX
235 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
236 supports 16 channels.
237 A maximum of 15 channels can be requested simultaneously and
238 must have the same period.
240 To compile this driver as a module, choose M here: the module
241 will be called pwm-lpc18xx-sct.
244 tristate "LPC32XX PWM support"
245 depends on ARCH_LPC32XX
247 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
250 To compile this driver as a module, choose M here: the module
251 will be called pwm-lpc32xx.
257 tristate "Intel LPSS PWM PCI driver"
258 depends on X86 && PCI
261 The PCI driver for Intel Low Power Subsystem PWM controller.
263 To compile this driver as a module, choose M here: the module
264 will be called pwm-lpss-pci.
266 config PWM_LPSS_PLATFORM
267 tristate "Intel LPSS PWM platform driver"
268 depends on X86 && ACPI
271 The platform driver for Intel Low Power Subsystem PWM controller.
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-lpss-platform.
277 tristate "Amlogic Meson PWM driver"
278 depends on ARCH_MESON
280 The platform driver for Amlogic Meson PWM controller.
282 To compile this driver as a module, choose M here: the module
283 will be called pwm-meson.
286 tristate "MediaTek display PWM driver"
287 depends on ARCH_MEDIATEK || COMPILE_TEST
290 Generic PWM framework driver for MediaTek disp-pwm device.
291 The PWM is used to control the backlight brightness for display.
293 To compile this driver as a module, choose M here: the module
294 will be called pwm-mtk-disp.
297 tristate "Freescale MXS PWM support"
298 depends on ARCH_MXS && OF
301 Generic PWM framework driver for Freescale MXS.
303 To compile this driver as a module, choose M here: the module
304 will be called pwm-mxs.
306 config PWM_OMAP_DMTIMER
307 tristate "OMAP Dual-Mode Timer PWM support"
308 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
310 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
312 To compile this driver as a module, choose M here: the module
313 will be called pwm-omap-dmtimer
316 tristate "NXP PCA9685 PWM driver"
320 Generic PWM framework driver for NXP PCA9685 LED controller.
322 To compile this driver as a module, choose M here: the module
323 will be called pwm-pca9685.
326 tristate "PKUnity NetBook-0916 PWM support"
329 Generic PWM framework driver for PKUnity NetBook-0916.
331 To compile this driver as a module, choose M here: the module
332 will be called pwm-puv3.
335 tristate "PXA PWM support"
338 Generic PWM framework driver for PXA.
340 To compile this driver as a module, choose M here: the module
341 will be called pwm-pxa.
344 tristate "Renesas R-Car PWM support"
345 depends on ARCH_RENESAS || COMPILE_TEST
348 This driver exposes the PWM Timer controller found in Renesas
349 R-Car chips through the PWM API.
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-rcar.
354 config PWM_RENESAS_TPU
355 tristate "Renesas TPU PWM support"
356 depends on ARCH_RENESAS || COMPILE_TEST
359 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
360 in Renesas chips through the PWM API.
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-renesas-tpu.
366 tristate "Rockchip PWM support"
367 depends on ARCH_ROCKCHIP
369 Generic PWM framework driver for the PWM controller found on
373 tristate "Samsung PWM support"
374 depends on PLAT_SAMSUNG || ARCH_EXYNOS
376 Generic PWM framework driver for Samsung.
378 To compile this driver as a module, choose M here: the module
379 will be called pwm-samsung.
382 tristate "STMicroelectronics SPEAr PWM support"
383 depends on PLAT_SPEAR
386 Generic PWM framework driver for the PWM controller on ST
389 To compile this driver as a module, choose M here: the module
390 will be called pwm-spear.
393 tristate "STiH4xx PWM support"
397 Generic PWM framework driver for STiH4xx SoCs.
399 To compile this driver as a module, choose M here: the module
400 will be called pwm-sti.
403 tristate "STMicroelectronics STM32 PWM"
404 depends on MFD_STM32_TIMERS || COMPILE_TEST
406 Generic PWM framework driver for STM32 SoCs.
408 To compile this driver as a module, choose M here: the module
409 will be called pwm-stm32.
412 bool "STMPE expander PWM export"
415 This enables support for the PWMs found in the STMPE I/O
419 tristate "Allwinner PWM support"
420 depends on ARCH_SUNXI || COMPILE_TEST
421 depends on HAS_IOMEM && COMMON_CLK
423 Generic PWM framework driver for Allwinner SoCs.
425 To compile this driver as a module, choose M here: the module
426 will be called pwm-sun4i.
429 tristate "NVIDIA Tegra PWM support"
430 depends on ARCH_TEGRA
432 Generic PWM framework driver for the PWFM controller found on NVIDIA
435 To compile this driver as a module, choose M here: the module
436 will be called pwm-tegra.
439 tristate "ECAP PWM support"
440 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
442 PWM driver support for the ECAP APWM controller found on AM33XX
445 To compile this driver as a module, choose M here: the module
446 will be called pwm-tiecap.
449 tristate "EHRPWM PWM support"
450 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
452 PWM driver support for the EHRPWM controller found on AM33XX
455 To compile this driver as a module, choose M here: the module
456 will be called pwm-tiehrpwm.
460 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
462 PWM Subsystem driver support for AM33xx SOC.
464 PWM submodules require PWM config space access from submodule
465 drivers and require common parent driver support.
468 tristate "TWL4030/6030 PWM support"
469 depends on TWL4030_CORE
471 Generic PWM framework driver for TWL4030/6030.
473 To compile this driver as a module, choose M here: the module
474 will be called pwm-twl.
477 tristate "TWL4030/6030 PWM support for LED drivers"
478 depends on TWL4030_CORE
480 Generic PWM framework driver for TWL4030/6030 LED terminals.
482 To compile this driver as a module, choose M here: the module
483 will be called pwm-twl-led.
486 tristate "vt8500 PWM support"
487 depends on ARCH_VT8500
489 Generic PWM framework driver for vt8500.
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-vt8500.